Description; Description Of The Test Instrument - TESTBOY TV 441 Bedienungsanleitung

Description

Description
The measuring instrument serves to check the earth resistance of earthing systems such as foundation, rod or ring
earth electrodes. This can be performed with a two-pole or three-pole measurement. The measuring instrument
can also be used to measure the earth voltage.
The measuring instrument is fitted with a large, background illuminated LC display from which to read off the
measured value. The measuring instrument can save up to 100 groups of measured data which are retained after
interruption of the power supply. The measuring instrument can be used to measure maximum, minimum and
averages and for relative measurements. It is fitted with an automatic deactivation function.

Description of the test instrument

(1) Rotary switch
(2) APS button
(3) LIGHT button
(4) CLEAR button
(5) LCD
(6) READ button
(7) MEMO button
(8) MEASURE button
(9) button
(10) MAX/MIN/AVG button
(11) ENTER button
(12) REL button
(13) button
(14) Jack E
(15) Jack P/S
(16) Jack C/H
20
Switch between measurement of the earth voltage and two-pole or three-pole
measurement of the earth resistance.
Activates or deactivates the automatic deactivation function.
Activates or deactivates the background illumination.
Deletes data.
Displays the measured data and various symbols.
Displays the measured data.
Saves the measured data
Activates or deactivates the measurement of the resistance.
Selects a memory cell to save the measured data
Switches between the measurement of maximum, minimum and average.
Confirms the saving or reading out of data.
Selects relative measurement.
Selects a memory cell to save the measured data
Connects the measurement pole.
Connects the auxiliary earthing rod
Connects the auxiliary earther
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